**R**emote **I**ndependent **F**riendly **F**ield-**L**ogger **E**lectronics

(Also see http://en.wikipedia.org/wiki/Riffle for description of the stream bed feature "riffle")

# The Riffle

The **RIffle_328** is an Atmel328-based variant of the original ARM-based Riffle water monitor, which was designed by Ben Gamari and Laura Dietz. The Riffle_328 is designed to be programmed just like an Arduino UNO in the Arduino IDE, and is compatible with most Arduino UNO software libraries.  Hardware designs for the Riffle_328 are released under the CERN Open Hardware License v1.2.

Public Lab's **Open Water Initiative** has supported development of the Riffle_328, as well as several water monitoring sensor prototypes.

**2016 Riffle_328 Status**.  A small order of 30 boards arrived late April 2016, and were sent to Public Lab community members as a ways of testing current hardware features and direct further development.

# Hardware and Software Development on Github

- [Openwaterproject](https://github.com/OpenWaterProject) -- the main organization on github
- [riffle_328](https://github.com/OpenWaterProject/riffle_328) -- hardware designs, instructions and software for getting started with the Riffle_328 datalogger
- [riffle_328-conductivity](https://github.com/OpenWaterProject/riffle_328-conductivity) -- Design considerations around conductivity
- [riffle_328-depth](https://github.com/OpenWaterProject/riffle_328-depth) -- Depth measurement circuit prototype
- [riffle_328-turbidity](https://github.com/OpenWaterProject/riffle_328-depth) -- Turbidity sensor prototype
 - [riffle_328-thermistor](https://github.com/OpenWaterProject/riffle_328-thermistor) -- Connecting a thermistor to a Riffle
 - [riffle_328-i2c](https://github.com/OpenWaterProject/rriffle_328-depth) -- Connecting i2c sensors to a Riffle
- [riffle_328-one-wire](https://github.com/OpenWaterProject/rriffle_328-one-wire) -- Connecting one-wire sensors to a Riffle

# Bottle Enclosure

The width and height of the Riffle-ito device allows the device to fit through the mouth of a standard commercially produced plastic water bottle (20 mm).